LON:COST Costain Group (COST) Share Price, News & Analysis GBX 232 +6.50 (+2.88%) As of 06:32 AM Eastern Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsInsider TradesNews and Trends About Costain Group Stock (LON:COST) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get Costain Group alerts:Sign Up Key Stats Today's Range 225▼ 23350-Day Range 204.50▼ 234.5052-Week Range 124.40▼ 241Volume316,188 shsAverage Volume2.29 million shsMarket Capitalization£610.51 millionP/E Ratio16.57Dividend Yield2.27%Price TargetGBX 227.50Consensus RatingBuy Company Overview Costain improves people's lives by creating connected, sustainable infrastructure that enables people and the planet to thrive. Through the delivery of predictable, best-in-class solutions across the transport, water, energy and defence markets, we are creating a sustainable future and securing a more prosperous, resilient and decarbonised UK. By bringing together our unique mix of construction, consultancy, engineering and digital services, we work strategically with our customers and suppliers to meet critical national needs. Together, our people transform the performance of the infrastructure that connects, protects and powers people's lives. Our 3,500 people manage a workforce of around 14,500 people and collaborate with customers, partners, communities and wider industry to make infrastructure fit for a better future. Our ambition is to become a net zero business by 2045, while enhancing biodiversity and natural capital, and we have plans in place to deliver this. We are committed to procure responsibly and to be an inclusive and accessible business for all, enabling us to be our best while focusing on the outcomes that we deliver for people and planet. Read More Costain Group Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks34th Percentile Overall ScoreCOST MarketRank™: Costain Group scored higher than 34% of companies evaluated by MarketBeat. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion1.8 / 5Analyst RatingBuy Consensus RatingCostain Group has received a consensus rating of Buy. The company's average rating score is 3.00, and is based on no strong buy ratings, 2 buy ratings, no hold ratings, and no sell ratings.Upside/DownsideThe consensus price target for Costain Group is close to its current price, suggesting limited near-term upside or downside.Amount of Analyst CoverageCostain Group has only been the subject of 1 research reports in the past 90 days.Read more about Costain Group's stock forecast and price target. Earnings and Valuation1.3 / 5Proj. Earnings GrowthN/A Price to Earnings Ratio vs. the MarketThe P/E ratio of Costain Group is 16.09, which means that it is trading at a less expensive P/E ratio than the market average P/E ratio of about 38.89.Price to Earnings Ratio vs. SectorThe P/E ratio of Costain Group is 16.09, which means that it is trading at a less expensive P/E ratio than the Industrials sector average P/E ratio of about 25.46.Price to Earnings Growth RatioCostain Group has a PEG Ratio of 1.63. PEG Ratios above 1 indicate that a company could be overvalued.Price to Book Value per Share RatioCostain Group has a P/B Ratio of 2.67. P/B Ratios below 3 indicates that a company is reasonably valued with respect to its assets and liabilities. Short InterestN/AShort Interest LevelN/A Short InterestThere is no current short interest data available for COST. Dividend1.7 / 5Dividend StrengthWeak Dividend YieldCostain Group pays a meaningful dividend of 2.27%, higher than the bottom 25% of all stocks that pay dividends.Dividend GrowthCostain Group does not have a long track record of dividend growth.Dividend CoverageThe dividend payout ratio of Costain Group is 30.00%. This payout ratio is at a healthy, sustainable level, below 75%.Read more about Costain Group's dividend. News and Social Media1.3 / 5News Sentiment0.00 News Coverage This WeekMarketBeat has tracked 2 news articles for Costain Group this week, compared to 1 article on an average week.Search Interest81 people have searched for COST on MarketBeat in the last 30 days. This is an increase of 25% compared to the previous 30 days.MarketBeat Follows1 people have added Costain Group to their MarketBeat watchlist in the last 30 days. Company Ownership2.6 / 5Insider TradingSelling Shares Insider Buying vs. Insider SellingIn the past three months, Costain Group insiders have sold 38,745.90% more of their company's stock than they have bought. Specifically, they have bought £3,984.12 in company stock and sold £1,547,667.35 in company stock.Percentage Held by Insiders49.35% of the stock of Costain Group is held by insiders. A high percentage of insider ownership can be a sign of company health.Percentage Held by Institutions36.41% of the stock of Costain Group is held by institutions.Read more about Costain Group's insider trading history. Receive COST Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Costain Group and its competitors with MarketBeat's FREE daily newsletter. Submit View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy. COST Stock News HeadlinesCostain Cuts Share Count Further with Ongoing Buyback Programme1 hour ago | tipranks.comCostain Group PLC COSTSeptember 10, 2026 | morningstar.comMThe national debt just passed $39 trillionThe U.S. national debt just topped $39 trillion, up nearly $3 trillion in a single year and on pace to hit $40 trillion by fall. Servicing that debt now costs more than the entire defense budget, while inflation above 3.5% keeps eroding cash savings. Central banks are responding by buying gold at the fastest pace in decades. The U.S. Gold Bureau's complimentary guide covers IRA-eligible gold and silver options, secure storage, and a fast BuyBack Guarantee.September 16 at 1:00 AM | US Gold Bureau (Ad)Costain Reduces Share Count with Ongoing Buyback ProgrammeSeptember 2, 2026 | tipranks.comApprentices set for work on £1bn Sellafield projectSeptember 2, 2026 | msn.comCostain advances share buyback, cuts share count to 263 millionAugust 26, 2026 | tipranks.comCostain advances share buyback, cancelling over 6m sharesAugust 19, 2026 | tipranks.comCostain Group PLC (CTNGY) Q2 2026 Earnings Call TranscriptAugust 18, 2026 | seekingalpha.comSee More Headlines COST Stock Analysis - Frequently Asked Questions How have COST shares performed this year? Costain Group's stock was trading at GBX 159.20 at the beginning of the year. Since then, COST stock has increased by 41.5% and is now trading at GBX 225.20. How were Costain Group's earnings last quarter? Costain Group PLC (LON:COST) posted its earnings results on Thursday, August, 13th. The company reported $5.70 EPS for the quarter. Costain Group had a trailing twelve-month return on equity of 14.73% and a net margin of 3.57%. Read the conference call transcript. How do I buy shares of Costain Group? Shares of COST stock and other U.K. stocks can be purchased through online brokerage accounts that support trading on the London Stock Exchange (LSX). Some U.K. companies can be purchased through major U.S. brokerages in the form of American Depository Receipts (ADRs), which are placeholder equities held in a trust by a bank that represent shares of a foreign stock. What other stocks do shareholders of Costain Group own? Based on aggregate information from My MarketBeat watchlists, some other companies that Costain Group investors own include Fluor (FLR), Jacobs Engineering Group (JEC), KBR (KBR), NVIDIA (NVDA), Advanced Micro Devices (AMD), Meta Platforms (META) and John Wood Group (WG). Company Calendar Last Earnings8/13/2026Today9/16/2026CMD 202611/19/2026Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeLON SectorIndustrials Industry Construction & Engineering Sub-IndustryConstruction & Engineering Current SymbolLON:COST CIKN/A Webcostain.com Phone+44-1628-842444FaxN/AEmployees3,270Year FoundedN/APrice Target and Rating Average Price Target for Costain GroupGBX 227.50 High Price TargetGBX 275 Low Price TargetGBX 180 Potential Upside/Downside-1.9%Consensus RatingBuy Rating Score (0-4)3.00 Research Coverage2 Analysts Profitability EPS (Trailing Twelve Months)GBX 14 Trailing P/E Ratio16.57 Forward P/E Ratio16.87 P/E Growth1.63Net Income£29.90 million Net Margins3.57% Pretax MarginN/A Return on Equity14.73% Return on Assets5.63% Debt Debt-to-Equity Ratio12.61 Current Ratio1.40 Quick Ratio1.32 Sales & Book Value Annual Sales£1.06 billion Price / Sales0.57 Cash FlowGBX 266.18 per share Price / Cash Flow0.87 Book ValueGBX 84.30 per share Price / Book2.75Miscellaneous Outstanding Shares263,150,000Free FloatN/AMarket Cap£610.51 million OptionableNot Optionable Beta0.89 Don't Wait for the OpenAI IPOThe AI wave will soon hit public markets with Anthropic and OpenAI set to go public later this year. However, you don't have to wait to invest. This report shows seven AI stocks that you can buy today while the big model providers get ready to go public.Get This Free Report This page (LON:COST) was last updated on 9/16/2026 by MarketBeat.com Staff. From Our PartnersJon Najarian's #1 Energy Trade for 2026Jon Najarian says he's never been more excited about an energy opportunity. 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